Through coculture phagocytosis experiments, we observed that CAR-shSIRPα-Ms exhibited significantly greater phagocytic activity against CD19-positive human Burkitt lymphoma Raji cells and human diffuse large B-cell lymphoma SU-DHL-4 cells than CAR-Ms did (Supplementary Fig. 4b). The gene discussed is CD19; the disease is Burkitt lymphoma.